| staunch(adjective, weak, resolute, dependable) | |
| strong(adjective, clear, dependable) | |
| tested | |
| time-tested | |
| tried and true | |
| truthful(adjective, clear, strong, false, dishonest) | |
| undeviating | |
| unswerving(adjective, determined, ambiguous) | |
| accurate(adjective, clear, strong, false, careless) | |
| authentic(adjective, fake, false) | |
| authoritative | |
| believable(adjective, unreasonable, trustworthy, unbelievable) | |
| calculable | |
| close(clear, slight, generous, inaccurate) | |
| consistent | |
| credible(adjective, unsound, unbelievable) | |
| definite(adjective, clear, strong, dependable) | |
| definitive(adjective, false, uncertain, authoritative) | |
| devoted(false, uncaring) | |
| exact(adjective, careful, painstaking) |
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Unreliable on
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| APA | Smart Define. (2016). unreliable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unreliable/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "unreliable thesaurus" https://smartdefine.org/unreliable/thesaurus/antonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, unreliable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unreliable/thesaurus/antonyms>. |
| MLA | Smart Define. "unreliable thesaurus" 4 March 2016. Web. 28 September 2026. <https://smartdefine.org/unreliable/thesaurus/antonyms> |